$20.\\y=x^2-x-2\\a=1,\ b=-1,\ c=-2\\\\\dfrac{-b}{2a}=\dfrac{-(-1)}{2(1)}=\dfrac{1}{2}\to x=\dfrac{1}{2}\\\\x^2-x-2=0\\\\x^2-2x+x-2=0\\\\x(x-2)+1(x-2)=0\\\\(x-2)(x+1)=0\iff x-2=0\ \vee\ x+1=0\\\\x=2\ \vee\ x=-1$

3 0

3 years ago

The Original price $500 sale price $175 what’s the discount this is on discounts and markups

lozanna [386]

The discount is 65%
sorry for the mistake

4 0

3 years ago

Which expression is equivalent to 56 + 21?

Ghella [55]

If the last one is supposed to be 7(8+3), it would be equivalent to 56+21

3 0

2 years ago

The box plot represents this data set.

Dennis_Churaev [7]

A represents the extreme minimum value of the set of data points : therefor the answer would be 17

7 0

2 years ago

Read 2 more answers